Mini biaxial tensile machine

The mini biaxial tensile machine allows one to apply in-plane biaxial stress states with arbitrary stress ratios and to perform strain path changes on thin-sheet metals. The device is optimized for in situ usage inside a scanning electron microscope and at synchrotron beam lines. Both dogbone and cruciform shaped samples can be mounted. The machine is controlled by an in-house written LabVIEW steering program.


More detailed information on this device can be found at:
A Miniaturized Biaxial Deformation Rig for in Situ Mechanical Testing
Van Petegem S, Guitton A, Dupraz M, Bollhalder A, Sofinowski K, Upadhyay M V, Van Swygenhoven H
Experimental Mechanics 57, 569-580 (2017).
DOI: 10.1007/s11340-016-0244-0

Technical details

Displacement    
  Maximum displacement 10mm
  Minimum step size 10nm
  Maximum speed 1mm/s
Force    
  Maximum force 44N
Strain measurement    
  Method Digital image correlation (DIC)
  Resolution 0.02%
Other specifications    
  Deformation modes Multiaxial tension
  Control modes Displacement, force
  Temperature RT
  Size (L x W x H) 200mm × 190mm × 73.2mm
  Weight 2.3kg
  Compatible SLS beam lines Materials Science, MicroXAS